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Did you see the comparison to other jets?
Su57 is artisanally made, less than two dozen. ~200 is a short production run, they shut it down early because those 200 could defeat every other air force on the planet several times over. But tech has progressed since then, it’s only a bit better than the J20. But like the U2, that’s not it’s fault.
If the US ever had use them to fight a peer competitor then these 200 would disappear very quickly. At that point the US would be unable to replace them because it lacks industrial capacity to do so.
It lacks the molds, fittings, and jigs to. They were destroyed after the production run shut down. Similar story to the F1 Saturn V engines, it’d be more work to recreate them than to make something better.
F35 was an attempt to make something better, and after over a trillion dollars being poured into the project over many years, it’s an unmitigated disaster.
No, it was an attempt to make something stol and cheaper, and it succeeded after billions of extra dollars and an extra decade. NGAD is supposed to be the all around better replacement.
You can keep repeating that it succeeded till you’re blue in the face, but the reality is that it’s far from a successful platform. It’s highly unreliable, and it needs a ton expensive of maintenance. It’s the opposite of what you want in a weapon which is to be cheap, reliable, and easy to service. It’s a toy.
Expensive maintenance compared to what? Have you looked at the operations rates? It looks like F35 costs about the same per hour as the F15EX.
https://comptroller.defense.gov/Portals/45/documents/rates/fy2023/2023_b_c.pdf
Far more expensive compared to SU-57 that’s actually been proven effective in combat against NATO air defence systems. This is how actual weapons are developed:
https://militarywatchmagazine.com/article/first-look-stealth-optimised-al51f-1-powering-russia-su-57m
What’s the su57 cost per hour taking into account maintainer income differences? I don’t see any numbers. And weren’t you criticizing the F22 for only having 200 units?